Double-pan hopper and valve



Jan. 20, 1931.

J. C. SCHUMACHER I DOUBLE PAN HOPPER AND VALVE s' Sheets-Sheet 1 Filed Oct. 28, 1929 R E H C m w 0 3 C N M J Jan. 20, 1931. J. c. SCHUMACHER DOUBLE PAN HOPPER AND VALVE Filed Oct. 28, 1929 3 Sheets-Sheet 2 E i T F0 2 7 H 2 H m 5 4 W5 1 Q f 2 )z 5 3 5 9 3 2 .4 u l H W M a a l 5 1 5 Jan. 20, 1931. .J.-C. SCHUMACHER 1,789,844

DOUBLE PAN HOPPER AND VALVE Filed Oct. 28, 1929 5 Sheets-Sheet 3 Juro 14W JUHN C. 501-! uMAcHER, v

Patented Jan. 20, 1931 UNITED; STATES PATENT OFFICE JOHN C. SCHUMACHER, OF DAYTON, onio, assienon'ro THE DAYTON MFG. COMPANY,

. or DAYTON, 01110, A eonPoRA'rIoN or OHIO r DOUBLE-PAN HOPPER Ann VALVE Application filed October 28, 1929.: Serial No. 402,844.

This invention relates to improvements in hoppers and water valves connected with water closets, and more particularly relates.

- to water closets used in connection with railway cars and the like. NVh le 1t'1s par ticularly adapted for use in. connection with railway cars it may be used in .otherplaces. It is particularly an object of this inv-en tion to provide, in connection with the i 1 hopper, two flush pans, a lower and an upper one, with mechanism for operating these pans in connection witha. side valve, for admission of water to the hopper.

It is a further object of this invention to provide means for first elc-vatingthe lower pan, which is normally open, and thereafter raise the upper pan, which is normally-closed, and at the same time admit water to the hopper for the purpose of flushing it. All

1:0 ofthese operations are performed by one single operatinglever, whichacts first to close the lower hopper, open the upper hopper and admit water thereto.

It is also an object of this invention to provide a side valve mechanism to which are attached the operating means for shifting the flush pans and opening and closing the valve, and means cooperating with the operating means for holding all the flush pans open so that the whole hopper maybe flushed and drained at onetime.

It is a further object of this invention to provide, in a double flush pan hopperhaving a side valve, an interconnecting mechanism.

3 between the valve and the flush pans for operating the pans successively inthe flushing of the hopper and for providing a water seal in the upper pan after the hopper has been flushed and the pans returned to normal position.

shown in the accompanying drawings a preferred embodiment of this invention.

Referring to the drawings:

Figure 1 is a side elevation of the hopper with the pan and valve controlling apparatus attached thereto.

Figure 2 is a top plan view of the apparatus, as shown. in Figure 1.

Figure 3 is a vert cal longitudinal as? For the purpose of illustration. there is tionthrough the valve casing and the. valve mechanism inclosed therein. Figure 4 1s a vertlcal. cross section. show- 'ing. the valve shaft and the meansfor operating the valve stem. I V

Figure 5 1s a front end view of the valve casing.

V Figure 6 is a side elevation of the hopper and its associated mechanism, with the lower part of the hopper in section showing the pans in their normal positions, the upper pan being closed and the lower-pan being open.

pan open.

F'gure'? is a view similar to Figure6 but i Figure'S is a view similar to Figures Gand 7 showing the positions of the pans immediately after the hopper has been flushed, butwith the valve partly open for the purpose of admitting water to the hopper after the upper pan has been closed.

Figure?) is a view similar to Figures 6,

'Z and 8, but showing the pans both in open position and locked in' that position.

Figure lO'is a section through the rear end of the valve casing showing the bypass.

In Figure 1 there is shown the side elevation of appli'cants invention, as applied to a hopper used in connection with water closets found in connection with railroad cars. The hopper is indicated by the numeral 1. This hopper is provided with the usual seats, as shown in the upper part thereof, which form no part of this invention.

The lower part of the hopper is contracted, and is provided with two closures therefor, one above the other. These closures are termed pans, the upper one of which is indicated by the numeral 2, and is pivoted to v the rear wall of the hopper at a point indicated by the numeral 3, which has a shaft 7 and extends beyond the walls of the hopper.

Onone end of this shaft is a weight 4: which tendsto keep the hopper closed, or assist in closing it when the operating lever is released. On the opposite end of this shaft from the weight is acrank arm 5, This crank arm has h llow. stub shaft as ens indica e by the numeral 6. adapted to receive a square end of the shaft 3.

The lower pan, which is normally open, is indicated by the numeral 7, and is pivotally mounted to a suitable bracket on the rear end of the rear wall of the hopper. The point of pivot is a shaft indicated by the numeral 8. This pan is pivoted by means of a shaft which has on one end a weight 9 very similar to the weight 4:, and tends to hold this pan normally open. as shown in Figure 1. On the other end of this shaft from the weight 9 there is mount-- ed a crank arm 10, which has extending there from a stub shaft 11 with a socket therein to receive the end of the shaft 8. 7 Q 7 As shown in the figures, there is located above the hopper to some suitable support, as for instance, the rear side wall valve casing This valve casing is shown in section in Figures 3 and 4. The inlet to this casing is indicated by the numeral 13, while the outlet is indicated by the numeral 14. The inlet is connected to some suitable source of water, while the outlet is connected by a pipe to the upper part of the hopper. This pipe is indicated by the numeral 13.

and the outlet there is a valve seat 15. 'This valve seat is adapted to receive a valve '16 for the purpose of closing the passageway to prevent the flow of water from the inlet to the outlet. On one side of this valve is a hollow valve stem 17, which fits within an opening in a hollow plug 18, which is screw threaded into an aperture in the front wall of the casing. WVithin the pluglS and also fitting within the hollow stem l7'is a spring19, the purpose of which is to hold the valve 16 normally seated in the seat 15.

Extending from the valve, in a direction opposite to the valve stem 1'7 is an inner valve stem 20, which is held in engagement with the valve and the outer valve stem by means of a screw 21. These parts maybe made of any suitable material. The valve preferably is made of some soft yielding material that will adaptitself to the shape of the valve seat.

The inner end of the valve stem 20 has a socket therein 22, which receives the reduced end of the operating stem 23. The end of the operating stem 23 remote from the valve stem 20 is reduced. The part of the valve casing in which the operating stem 23 is located is cylindrical in form and is adapted to be used as a dash pot cavity 24. The end of this dash pot cavity remote from the valve seat is open. F or the purpose of closing this opening there is provided a cap 25, which has therein a hole 26 in which the reduced end of the operating This reduced end of the stem fits and moves. operating stem that fits into hole 26 isindicated by the numeral 27.

For. the purpose of formin a dash pot structure there is provided in the dash pot cavity 24 a dash pot valve 28. This valve is constructed asvalves of this class are, and has for its object to retard he movement of the valve stem 23 back and forth, and prevent any rattling or sudden or jerking movement of the valve.

For. the purpose of aiding the dash pot in control of the valve and retard its movement,

there is a by-pass 29. This by-pass is shown in Figures 10 and 4. Figure lO shows the part of the by-pass tl enters into the cap 25 which forms a closure for the dash pot. Figure t shows the entrance of the by-pass into the casing to the left of the dash pot valve, as shown in Figure 3.

For the purpose of regulating the low of water through the by-pass there is a valve indicated by the numeral. 30. This valve is in the form of a conical point, which is screw threaded in aplug, and for the purpose of adjusting the valve it maybe screwed in or out so as to partly close or entirely open the by-pass 29 and thereby regulate the flow of water around the dash pot valve j Mounted within the casing there is a shaft 31 used for the purpose of operating-the valve,

"and for this purpose has extending there- In the water passageway between the inlet from an arm 32, the end of which iscircular in shape and fitswlthin a slot or socket 33 in the operating stem, as shown in Figure 3.

On the router square end 34: of this shaft is" a leverv 35. For the purpose of engaging this shaft the lever has near the center thereof a'sq'uare socket which fits over a correspondingly shaped end of this shaft. The part of the lever 35 which receives the end of the shaft 31 is enlarged and formed in the shape of a circular boss 36.

' On one end of the lever 35 there is a lug 37 which extends downwardly, outwardly and upwardly from the lever. The end of the lever remote from the lug 37 is split, as indicated by the numeral 38. Extending from the splitend of the lever 35 to the crank arm 5 is a connecting rod or link 39.

This link is connected to the lever 35 by means of a joint connection 40, and is connected to the crank arm 5 by meansof a joint connection 41.

Pivotally mounted upon the boss 36 is a handlever F or the purpose of this"- mounting the lever is provided near its center with an enlarged opening, and is held in position on the boss by means of screw 43. One end of this lever isadapted to be engaged by the hand, while on the other end' there is formed a split to which one end of the link is attached. The link 45 is attached to the lever 42 by means of -a joint connection 46 and to the crank arm 10 by means of a joint connection 47.

I The link 45 is intwo sections, one end of one section fitting within one end of the other section. Between the telescoping ends of these sections is a compression spring 45 which allows a slight elongation of the link pan it will also operate the lever to lower the upper pan, but the lowering of the upper pan takes place after the first pan has been substantially raised to closed position. This operation of the lever 35 by lever 42 effected by the lever .42 engaging the lug 37 on the end of the lever 35.

For the purpose of locking the lever 35 in such a position that the pan operated thereby is open, there is provided a pin 48. This pin, in the form of a lock pin, is located in a suitable slot in the front end of the easing. The handle for the operation of this pin is indicated by the numeral 49 and moves along and through a slot 50. When this pin is in one position the lever35 is free to oscillate for the purpose of opening and closing the upper pan, but when the pin 48 is in an outwardly extending position it engages above the lever and looks it so that the pan operated thereby is held open.

When this lever is thus locked both pans are open since the normal position of the lower pan is open. I In this position of the pans the hopper may be washed and drained, as the valve is also open when the parts are so locked.

For the purpose of supporting the valve casing there is provlded on the rear thereof a valve plate 51. This plate is attached to the casing in any suitable manner by rivets, screws or otherwise. This casing is also mounted on supports, either a studding, upright or wall, by means of screws or bolts 52.

From the foregoing it is obvious that applicant has provided an apparatus for use in connection with water closets on railroad trains, which is easily operated and effective for the purpose for which it is intended. Merely by pressing down a. lever 42 the lower pan is first closed, or substantially closed, after which by a continued operation of the same lever the upper pan is opened and the hopper is flushed because of the operation of the valve stem and the consequent opening of the valve.

\Vhen the lever 42 is released and the parts permitted to assume their normal positions, the lower pan becomes open due to its weight as well as to the operation of the lever 42, while the upper pan is closed due to its weight and the operation of the lever 42.

But after the upper pan is closed the valve is still sufficiently open to permit a sufficient flow of water into the hopper so that there The valve casing is all times a slight amount of water maintained in the hopper. After this slight flow of water is permitted the valve is finally cut off so that there is no further flow until the lever is again operated for the purpose of flushing the hopper.

I desire-to comprehend within my invention such modifications as may be clearly embraced within my claims and the scope of my invention. Having'thus fully describedmy invention, what I claim is new and desire to secure by Letters Patent, is:

1. In a water closet, a water inlet pipe and a pair of pivoted flush pans, one normally closed and the other normally open, and movable means comprising a pair of levers, one operable in. the firststages of its movement. to close the open pan and on further movement to operate the other lever to open the closed pan and to admit water through the inlet pipe to the hopper.

2. In a water closet, a hopper having water inlet pipe and a pair of flush pans,

onei'being normally open and the other being normally closed, a casing having av valve and-valve shaft therein to control the flow of water through said pipe, a lever on said shaft connected at one end to one of said pans to open and close it, and a second lever con-- nected at oneend to the'other panto open and desert and adapted to engage thefirst leverto operate it, whereby on operation of said second lever the first named pan is substantially closed and thereafter the second named pan is opened and the valve operated to admit water to the hopper.

3. In a Water closet, a hopper having a pair of vertically swinging vertically disposed flush pans, meansfor admitting water to said hopper including a valve and valve shaft,a lever onsaid shaft connected at one end to one of said pans, a second lever pivotedto the first leverand connected atone end to the other pan and adapted to engage the first lever whereb on o aeration of. thesec- 0nd lever its pan is raised and thereafter the first lever isoperated by the second lever to raise the second levers flush pan and to operate the valve to flush the hopper.

l. In a water closet a. hopper having a hopper having a water inlet pipe, pair of flush pans, one

normally closed and the other normally open,

means operable to first close the open pan and thereafter open-the closed pan and to admit water to the hopper, and means to lock the normally closed pan in open position when said first means is operated to restore the parts to their normal position, whereby all pans are open and thewater is flowing through the hopper.

5.'In a water closet, a hopper having a Water inlet pipe and a pair of flush pans, one normally closed and the other normally open, a valve and valve shaft to controlthe flow of Water to the hopper, a lever on said shaft connected at one end to said normally closed pan, a second lever pivoted on the first lever and connected at one end to the normallyopen pan, means on the first lever to be engaged by said second lever, said levers being so constructed that a rotation of the second lever closes the open pan and en gages the first lever to rotate it to open the closed pan and rotate the valve shaft to open the valve to flush the hopper, and means to lock the first lever to hold the first pan and valve open when the second pan returns to its normal position.

6. In a water closet, a hopper, an upper normally closed and a lower normally open flush pan, a casing having a valve and a valve operating shaft therein, and a water pipe leading thereto and to the hopper, a lever to operate the valve and the upper flush pan, a second lover connected to the lower flush pan and adapted on operation to rock the first lever, whereby the lower flush pan is first closed and thereafter the upper flush pan and the valve are open, and a sliding catch to engage the first lever to hold it in valve and flush pan open position when the second lever is returned to flush pan open position so that the hopper may be drained and washed out.

7. In a water closet, a hopper having a plurality of compartments, a side casing having Water connection with said hopper, a valve and a valve operating shaft in said casing, interconnecting means between said shaft and said compartments whereby on rotation of said shaft the compartments are successively flushed, and means on said casing to engage said interconnecting means so that all the compartments may be flushed at one time.

8. In a water closet, a hopper having a pair of compartments, a valve having a shaft for admitting water to the hopper, a lever having a boss on said shaft and adapted to open one compartment and operate the valve to admit water to the hopper, and a second lever mounted on the boss and adapted to close the other compartment and thereafter operate the other lever for purposes set out.

In testimony whereof, I affix my signature.

JOHN C. SOHUMACHER. 

